DE3861556D1 - Verhinderung von ablagerungen. - Google Patents

Verhinderung von ablagerungen.

Info

Publication number
DE3861556D1
DE3861556D1 DE8888810418T DE3861556T DE3861556D1 DE 3861556 D1 DE3861556 D1 DE 3861556D1 DE 8888810418 T DE8888810418 T DE 8888810418T DE 3861556 T DE3861556 T DE 3861556T DE 3861556 D1 DE3861556 D1 DE 3861556D1
Authority
DE
Germany
Prior art keywords
deposits
prevention
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE8888810418T
Other languages
German (de)
English (en)
Inventor
Barry Dr Cook
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FMC Technologies Ltd
Original Assignee
Ciba Geigy AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB878714627A external-priority patent/GB8714627D0/en
Priority claimed from GB878717516A external-priority patent/GB8717516D0/en
Application filed by Ciba Geigy AG filed Critical Ciba Geigy AG
Application granted granted Critical
Publication of DE3861556D1 publication Critical patent/DE3861556D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
DE8888810418T 1987-06-23 1988-06-17 Verhinderung von ablagerungen. Expired - Lifetime DE3861556D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878714627A GB8714627D0 (en) 1987-06-23 1987-06-23 Scale inhibition
GB878717516A GB8717516D0 (en) 1987-07-23 1987-07-23 Scale inhibition

Publications (1)

Publication Number Publication Date
DE3861556D1 true DE3861556D1 (de) 1991-02-21

Family

ID=26292388

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888810418T Expired - Lifetime DE3861556D1 (de) 1987-06-23 1988-06-17 Verhinderung von ablagerungen.

Country Status (5)

Country Link
EP (1) EP0297049B1 (ja)
JP (1) JP2652041B2 (ja)
BR (1) BR8803057A (ja)
DE (1) DE3861556D1 (ja)
MX (1) MX173616B (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4937002A (en) * 1989-06-12 1990-06-26 National Starch And Chemical Investment Holding Corporation Interpolymers for barium sulphate inhibition
US5164468A (en) * 1990-09-05 1992-11-17 The Standard Oil Company Polymers derived from α, β-unsaturated polycarboxylic acids or anhydrides and n-substituted acrylamides, and use in reducing scale
US5755972A (en) * 1996-03-01 1998-05-26 Rohm And Haas Company Method for metal sulfate scale control in harsh oilfield conditions
GB201110728D0 (en) * 2011-06-23 2011-08-10 Uni I Stavanger Scale inhibition

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2054548B (en) * 1979-06-19 1982-12-22 Sanyo Chemical Ind Ltd Scale removal
JPS571316A (en) * 1980-06-02 1982-01-06 Matsushita Electric Ind Co Ltd Coffee brewer with mill
FR2483932B1 (fr) * 1980-06-09 1985-08-02 Rhone Poulenc Spec Chim Nouvelles compositions polymere acrylique, procede pour leur obtention, et application notamment comme agents antitartres
JPS5944119A (ja) * 1982-09-06 1984-03-12 Pioneer Electronic Corp 電子チユ−ナ−
JPS59105892A (ja) * 1982-12-10 1984-06-19 Kurita Water Ind Ltd 水処理剤
IN161206B (ja) * 1983-06-28 1987-10-17 Goodrich Co B F
EP0172154B1 (en) * 1984-07-13 1990-11-14 Monsanto Company Inhibition of scale formation with a maleate polymer
NZ213578A (en) * 1984-11-09 1988-04-29 Calgon Corp Inhibiting corrosion and scale deposition in aqueous systems by adding water soluble polymers
US4589985A (en) * 1984-12-03 1986-05-20 Calgon Corporation Polyelectrolyte and surfactant compositions for controlling alkaline earth metal scales
US4560481A (en) * 1984-12-13 1985-12-24 Betz Laboratories, Inc. Method of controlling iron induced fouling in water systems
US4710303A (en) * 1986-08-14 1987-12-01 Nalco Chemical Company Low molecular weight polyvinyl sulfonate for low pH barium sulfate scale control

Also Published As

Publication number Publication date
MX173616B (es) 1994-03-18
BR8803057A (pt) 1989-01-10
EP0297049A1 (en) 1988-12-28
JP2652041B2 (ja) 1997-09-10
EP0297049B1 (en) 1991-01-16
JPS6418499A (en) 1989-01-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: FMC CORP. (UK) LTD., MANCHESTER, GB

8339 Ceased/non-payment of the annual fee